A series of MoN particles supported on nitrogen-doped carbon (MoN@NC) catalysts for guaiacol hydrodeoxygenation were synthesized in situ through a one-step method employing dopamine as C and N resources and ammonium molybdate as Mo resource, respectively. During synthesis, molybdate ions are adsorbed on dopamine because of a complexation between them; then dopamine/molybdate ions/TMB/F127 nanoemulsions are formed. After polymerization, growth, drying, and carbonization, MoN particles supported on nitrogen-doped carbon catalysts are obtained. Because of the interaction between Mo and N, MoN particles are anchored onto the support, preventing the aggregation of MoN during carbonization. As a result, ultrafine MoN particles with a size of 1.0–1.3 nm are highly dispersed on MoN@NC catalysts. The guaiacol hydrodeoxygenation for these MoN@NC catalysts was performed at 280–380 °C, a H flow rate of 80 mL/min and different pressures and weight hourly space velocities. Among them, MoN@NC with a MoN loading of 40 % presents the highest guaiacol conversion (99.9 %) and aromatic hydrocarbon selectivity (80.2 %), which is also better than MoN/C with a MoN loading of 40 % prepared by the wet impregnation method.

中文翻译：

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N掺杂碳材料负载超细Mo2N颗粒的合成用于愈创木酚加氢脱氧


分别以多巴胺为碳源、氮源、钼酸铵为钼源，通过一步法原位合成了一系列用于愈创木酚加氢脱氧的氮掺杂碳负载MoN颗粒（MoN@NC）催化剂。在合成过程中，钼酸根离子由于它们之间的络合而被吸附在多巴胺上；然后形成多巴胺/钼酸根离子/TMB/F127纳米乳液。经过聚合、生长、干燥和碳化，得到负载在氮掺杂碳催化剂上的MoN颗粒。由于 Mo 和 N 之间的相互作用，MoN 颗粒被固定在载体上，从而防止 MoN 在碳化过程中聚集。因此，尺寸为 1.0–1.3 nm 的超细 MoN 颗粒高度分散在 MoN@NC 催化剂上。这些 MoN@NC 催化剂的愈创木酚加氢脱氧反应在 280–380 °C、H 流量 80 mL/min 以及不同的压力和重时空速下进行。其中，MoN负载量为40%的MoN@NC具有最高的愈创木酚转化率（99.9%）和芳烃选择性（80.2%），也优于湿法制备的MoN负载量为40%的MoN/C。浸渍法。